Could someone help me with these relationships?? a. How does the incident freque
ID: 2116641 • Letter: C
Question
Could someone help me with these relationships??
a. How does the incident frequency compare to the reflected frequency? How do you know?
b. How does the incident wavelength compare to the reflected wavelength? How do you know?
c. How does the incident wavespeed compare to the reflected wavespeed? How do you know?
d. How does the incident frequency compare to the refracted frequency? How do you know?
e. How does the incident wavelength compare to the refracted wavelength? How do you know?
f. How does the incident wavespeed compare to the refracted wavespeed? How do you know?
Explanation / Answer
a. No
b. No
c.No
d. No
e.Change
f. Change
I will explain in simple terms :
what is light ? light is an EM radiation and for any EM radiation when it passes across two different media velocity changes and that's refraction.Frequency does not change ie it is not frequency modulated.
now, where wavelength stands ?
wavelength = velocity / frequency
and since frequencies do not change while passing across interface of two media, but velcities change... then algebra says wavelength changes.
In case of reflection light is always on the same medium , so there is no change in velocity and hence no change in wavelenght tooo as frquency remains constant.
and also v1/v2 = n1/n2 ;
ratio of velocities in media = ratio of refractive index